Heat exchanger

Abstract

The invention relates to a heat exchanger including exchange components and fluid flow components ( 2, 2′, 3 ), at least one fluid collecting tank ( 11, 11′ ) into which the exchange components open out ( 2, 2′, 3 ), at least one collecting plate ( 10 ) for holding the exchange components ( 2, 2′, 3 ) and a housing ( 4 ) for accommodating the exchange components ( 2, 2′, 3 ). The exchanger is characterized in that it includes a flange ( 5 ) for fixing the collecting tank ( 11, 11′ ) on the housing ( 4 ). Thanks to the invention, the transmission of stresses from the flange ( 5 ) to the collecting plate ( 10 ) is avoided, which means that a thinner collecting plate ( 10 ) is able to be formed.

1 . A heat exchanger including exchange components and fluid flow components, comprising:
 at least one fluid collecting tank into which the exchange components open out;   at least one collecting plate for holding the exchange components; and   a housing for accommodating the exchange components, wherein said heat exchanger includes a flange for fixing the collecting tank to the housing.   
     
     
         2 . The exchanger as claimed in  claim 1 , in which the flange and the collecting plate are fixed to the housing independently of each other. 
     
     
         3 . The exchanger as claimed in  claim 1  in which the flange and the collecting plate is fixed directly to the housing. 
     
     
         4 . The exchanger as claimed in  claim 1 , wherein the flange and the collecting plate do not contact each other. 
     
     
         5 . The exchanger as claimed in  claim 1 , wherein the exchange components include tubes, within which a first fluid is flow-connected to the tank, and around which flows a second fluid, wherein the collecting plate provides a sealing between the first fluid and the second fluid and the flange provides a sealing between the first fluid and the outside of the exchanger. 
     
     
         6 . The exchanger as claimed in  claim 1 , wherein the collecting tank and the flange are crimped to each other. 
     
     
         7 . The exchanger as claimed in  claim 1 , wherein the flange is brazed to the housing and the housing includes at least one locating lug designed to be accommodated in an opening in the flange to hold this latter on the housing whilst both parts are being brazed. 
     
     
         8 . The exchanger as claimed in  claim 1 , in which the collecting tank and the housing are crimped. 
     
     
         9 . The exchanger as claimed in  claim 1 , wherein the collecting plate is brazed to the housing. 
     
     
         10 . The exchanger as claimed in  claim 9 , in which the collecting plate includes a skirt with an area along which the collecting plate is brazed to the housing.